Scrubbing-machine.



G.'F. KOSTER & H. D. MAcINTYRE. SCRUBBING MACHINE.

APPLICATION FILED DEC. 5, I913.

1,211,948. I Patented Jan. 9,1917.

3 SHEETS-SHEET I.

WITNESSES lI/ T095 1 Y mun-i l e. F. KOSTER & H, n. MAcINTYREL SCRUBBINGMACHINE.

APPLICATION FILED DEC-5.1913.

Patented Jan. 9, 1917.

3 $HEETS-SHEET 2- WITNESSES G. F. KOSIEB & H. D. MACINTYRE. SCRUBBINGMACHINE.

APPLICATION nuao mac. 5. I913.

1,21 1,948. Patented Jan. 9,1917.

3 SHEETSSHEET 3.

.109 Ill WITNESSES 0 7/ D STATES PATENT OFFICE.

GEORGE F. KOSTER, OF WHITE PLAINS, AND HECTOR D. MAOINTYRE, OF BROOKLYN,

I NEW YORK.

' SCRUIBBING-MACHINE.

Specification of Letters Patent.

Patented Jan. 9, 1917.

To all whom it may concern.-

Be it known that we, GEORGE F. Kosrnn,

a citizen of the United States, residing at White Plains, in the countyof VVestchester and State of New York, and HECTOR D.

MACINTYRE, a subject of the King of Great Britain, residing in theborough of Brooklyn, in the county of Kings, oi! and State of New York,have invented an Improve- 1o ment in Scrubbing-Machines, of which thefollowing is a. specification.

Our invention relates to a scrubbing machine, and the object thereof isthe provision of an apparatus adapted to be moved over the surface of astone, cement or other floor for efliciently cleaning the same, and inthe use of our improved apparatus, we preferably employ a cleaning fluidwhich is constantly supplied to suitable scrubbers to clean the floor orother surface, and which cleaning fluid is also continuously conveyedaway from the apparatus after having been used.

Our invention also includes a means for drying the surface when a liquidhas been employed to clean the same.

Our improved scrubbing machine com .prises a casing having a renovatorbase adapted to come into contact with the surface to be cleaned, ascrubber or scrubbing device, means for supplying a cleaning fluid tothe said scrubbing device, means for rotating the scrubbing device in agiven direction, a rotary refuse discharger, means for turning the samepreferably in the opposite direction to that in which the scrubber isturned, means for controlling the speed at which the scrubbing deviceand the refuse remover are revolved, and also devices for Q drying thesurface when a liquid is employed for cleaning the same, as will behereinafter more particularly described.

In the drawing, Figure 1 is a central sectional elevation, illustratingour improved scrubbing machine. Fig. 2 is a sectional plan taken on line22, Fig. 1. Fig. 3 is an inverted plan. Fig. 4 is a perspective view,illustrating the toe base at the ends of the veins of the refuseremover. Fig. 5 is an elevation of the brushes or scrubbers. Fig.

6 is a sectional elevation illustrating a modified form of a device forcontrolling the speed of the rotary members. Fig. 7 is a diagrammaticillustration of the electrical connections employed in this modifiedform of the controller mechanism, and Fig. 8 is a partial sectionalelevation, illustrating the use of the modified form of the devices forsupplying the cleaning fluid and removing the refuse.

Referring to the drawing, and particularly to Figs. 1, 2 and 3, ourimproved scrubbing machine comprises a'casing having a cylindrical bodyportion 10 and a'bell-shaped base 11. These members are preferablysecured to one another by means of screws 12, and the periphery of thebell-shaped member is adapted to contact with the floor or other surfaceto be cleaned when the appa ratus is moved over the same for thispurpose.

The cylindrical body member 10 is fitted with a cover 13, which issecured in position in the top thereof by means of the screws 14 orotherwise. Passing centrally through the body member 10 and extendinginto the bell shaped base 11, we employ a hollow shaft, indicated at 15.The shaft 15 passes through and is journaled in a bearing 16, connectedto which is a collar 17. The collar 17 is journaled in a flange 18,fixed on or integral with the base 19 of the cylindrical portion 10 ofthe casing. The collar 17 is provided with a disk 20, which, at itsouter portion, is beveled or flanged, as indicated at 21. Thecylindrical casing 10, adjacent its lower end, is provided with araceway 23,

in which'there are bearing balls 22, which also contact with the outersurface of the flange 21 of the disk 20, so that this disk,

' and the parts connected therewith, may rotate on this ball bearing.

24 designates a motor casing, which is secured to the disk 20 by meansof the screws '25 or otherwise. At its upper end, a ring 26 is securedto the motor casing 24, and at its periphery this ring 26 is flanged, asindioated at 27, the flanged portion of the ring being adapted to fitwithin the cylindrical portion of the casing 10. Immediately above thering 26, a ring 28 is connected to the cylindrical casing 10. This ring28 is provided with a flange 29, adapted to overlap the flange 27 of thering 26, between which we employ bearing balls 31, so that the motorcasing is also adapted to turn. on a ball bearing at its upper end.

Suitably connected to the ring 26 is a collar 84, which will behereinafter described, and through and in which the hollow shaft adaptedto receive the body 34 of a suitable brush, the bristles of which areindicated at 35. The hub 32, with its brushes, are slidablelongitudinally on the shaft 15, but are made to turn therewith by meansof a key 36. The lower end of the shaft 15 is somewhat reduced indiameter and is threaded to receive a nut 37, by means of which the huband brushes are secured on the shaft.

The arms 33 may be made in any suitable manner to receive and hold thebrushes in position. By reference to Figs. 1 and 5, it

will be seen that we have illustrated a dovetail connection betweenthese parts, although, as will be understood, any suitable constructionmay be employed, and furthermore each brush may be held in position by aset screw or otherwise, so as to be readily removed and a new brushplaced in position whenever this becomes necessary.

Within the bell shaped member 11, we employ an inverted bow-shapedrefuse discharger 38. This is provided with a flange 39, by means ofwhich it is suitably secured to the collar 17 so as to turn with thesame and the motor casing 24. At its periphery, the bowl shaped member38 is just sufficiently less in diameter than the bell shaped member 11to lie immediately within the same. Its curvature, however, is such thatthere is a space between these members, which increases with thedistance from their peripheries.

Interiorly the bowl shaped member 38 is provided with a series of vanes40, extend ing from the periphery thereof, running spirally and eachterminating at an opening 41, provided in the bowl shaped memberadjacent'the flange 39. At the lower end, each vane 40 is provided witha rubber toe piece 42, adapted to contact with the floor or othersurface to be cleaned, in such a manner that with the revolution of thebowl shaped member, this toe piece acts as a squeegee to take up thecleaning fluid and refuse, and by centrifugal action to carry the sameupwardly along the surface of the vanes 40 so as to discharge thisrefuse through the openings 41. In order that the edge of the bellshaped member 11 may be in close contact with the surface to be cleaned,the same is provided with a shoe 43, made of rubber or other suitablematerial.

Between' the bell-shaped member 11 and the inverted bowl shaped member38, we emfrom the discharge chamber 47 through the wall of the bellshapedmember 11, to a discharge receptacle 49, which is suitably securedto the said bell shaped member. This receptacle 49 may be provided witha cover 50 arranged in the top thereof, and also with a drain 51arranged in the bottom thereof. On the opposite side of the bell shapedmember, we preferably provide a casing, indicated at 52. Within thiscasing, are series of heat coils 53, controlled by a suitable rheostat54 mounted on the casing 52, or otherwise. Attached to the top of thecasing 52 is an elbow inlet connection 55, and secured to and extendingfrom the bell shaped member 11, is a nozzle 56, one end of which opensinto the discharge chamber 47 and the opposite end into the elbow inletconnection 55. In a suitable position, the bell shaped member 11 is alsoprovided with a socket 57, adapted to receive a handle 58, by means ofwhich the apparatus may be moved over the floor or other surface to becleaned. As shown in Fig. 1, the socket 57 may be secured to the bellshaped member by means of screws 59, and the handle 58 secured in thesocket 57 by a set screw 60.

Surrounding the shaft 15, :immediately beneath the cover 13, we employ acollar 61, which is preferablyfixed to the shaft by means of the setscrews 62. In diametrically opposite positions, lugs 63 are fixed to thecollar'61, and bell crank levers 64 are pivotally connected to the lugs63. At one end of each of the bell crank levers 64, there other arm ofeach bell crank lever is pivotally connected to one end of a link 65,the

opposite end of each link 65 being pivotally connected in a lug 66,secured to the friction disk 67 surrounding the shaft 15, and on itsupper surface provided with a layer of leather, felt or any othersimilar material.

Secured to and extending from the cover 13, preferably in diametricallyopposite positions, are tubes or cylinders 69, in each of which there isa plunger or piston 70 having a stem or piston rod 71 extending througha plug 72, adjustable to position in the tube 69, between the inner endof which and its plunger, and surrounding its stem, is a spring 73 fornormally maintaining the plungers in contact with the layer of leatheror felt 68, secured to the upper surface of the friction disk 67, inorder that the action of the governor may first force the friction diskagainst the plungers before the friction disk comes in actual contactwith the inner surface of the cover 13. This, as will be understood,provides for the friction disk coming gradually into contact with thecover member so as to insure against undue strains in the action of thego ernor.

Fixed on the shaft 15, within the motor casing, is an armature 74,provided, as is customary, with a commutator 75. Fixed to the walls ofthe motor casing are a plurality of fields and field coils 76, which maybe secured thereto by means of bolts 77 or otherwise.

Exteriorly of the cylindrical portion 10, are secured terminals 78 and79, together with a suitable switch 7 8. Through a suitable conductor,the terminal 78 is connected to the collector contact 80, bearingagainst a collector ring 81 secured to the collar 84.

Similarly, the terminal 79, through a suitable conductor, is connectedto a collector 82, which contacts with a collector ring 83,

also secured to the collar 84. The collar 84 j ifield coils by aconductor wire 88, from which there is a branch conductor wire 89leading to the brushes 87. The conductor wire 90 extends from theopposite terminal of the field coils to the collector ring 83,

and a branch conductor wire 91 extends from the conductor wire 90 to theopposite terminal of the brushes 87 The electrical connections are such,and the motor is so designed, that upon current beingsupplied theretothe armature will turn in one direction and the fields and the motorcasing in the opposite direction, so that the brushes are revolved inthe direction corresponding to the rotation of the armature, and theceptacle 49, suitably secured in position exteriorly to the cylindricalmember 10, and at its opposite end suitably connected to the hollowshaft 15. As indicated in the drawing, in making the connection'betweenthis pipe and shaft, we employ a socket 94, at the end of the shaft, apipe connection 95, a portion a branch 97 extending therefrom inalinement with the shaft 15, and provided with a cap 98, which may beremoved, when required, to gain access to the bore through the hollowshaft.

In the operation of the hereinbefore described apparatus, the receptacle49 is provided with the required quantity of Water or other liquid,employed in cleaning, and by any suitable means, the same may be causedto flow through the pipe 93 to the interior of thehollow shaft, bywhich, as will be understood, it is supplied to the brushes or otherscrubbing device employed. Furthermore, as will be apparent, after theflow of the cleaning liquid has been started, it will continue to flow,due to the siphon action made possible by the construction described. Asthe brushes throw off the cleaning liquid and refuse, the same isscraped up by the toe piece 42 and conveyed by the vanes 40 through theapertures 41 to the discharge chamber 47 and thence by the pipeconnection 48 to the receptacle 49, Where the dirt or other refusesettles to the bottom of the receptacle and the cleaning liquid may passthrough the apparatus again and thus be remployed.

As will also be understood, there is considerable air discharged throughthe openings 41 into the discharge receptacle 47, due to the rapiditywith which the member 38 revolves. This air thus discharged will beforced through the nozzle 56 into the elbow 55, where it acts as aninjector, drawing additional air into the elbow 55, all of which iscaused to pass into the casing 52, and to circulate therein over theheat coils 53, which dry, as well as heat, the air thus admitted to thecasing 52, so as to take up any moisture which may remain on the flooror other surface being cleaned after the apparatus has passed over thesame.

As is shown in Fig. 8, and as will be apparent, we may employ a meansfor a constantly fresh supply of cleaning fluid, and also forcontinuously conveyin the refuse from the apparatus. This pre erablycomprises a double hose, indicated at 99, containing a supply pipe 100,which is suitably connected at any desired point to the pipe 93,'and adischarge pipe 101, which is suit ably connected to the dischargechamber 47 ploy a casing 103, to be secured to the cy1in-,

drical member 10 and containing a double pole fuse blockv 104 fromone'terminal, on one side of which a collector wire 105 leads to thecollector 106 which is in contact with a collector ring secured on thecollar 84. The corresponding terminal of the fuse block is connectedto aresistance box 107, which, by a conductor wire 108, is connected to thecollector 109 on a second collector ring of the collar 84, whichcollector ring, by

a conductor wire 111, is connected to one of the brush terminals, Whilethe otherbrush terminal is connected by the conductor wire 110 to thecollector ring against which the collector 106 is in contact. Oneterminal on the'opposite side of the fuse block 104 is connected by acollector wire 112 with the collector 113 in contact with a thirdcollector ring, secured on the collar 84, and the corre spondingterminal of the fuse block is connected to a resistance box 114, which,by a suitable conductor wire'115 is connected to a collector 116 incontact with a fourth collector ring on the collar 8 1, the saidthirdand fourth collector rings being connected by conductor wires 117 and118 with the respectiveterminals of the field coils. In this instance, asuitable switch 119 controls a passage of the'current to the fuse block10 1,v and as will be apparent, by adjusting the re-.

sistance boxes 107 and 114:, the current supplied to the armature andfields may beso controlled as to govern the speed at which the armatureand the fields revolve. This preferably is in the ratio of 1 to 10,although of course, under different circumstances, different speeds maybe necessary.

We claim as our invention:

- 1. A scrubbing machine comprising a casing, a scrubber Within thesame, means for revolving the scrubber in one direction, a refuseremover concentric with said scrubber and also Within the casing, andmeans for revolving the refuse remover in the opposite 7 direction.

2. A scrubbing machine comprising :1 casing, a scrubbing device withinthe same, means for supplying a cleaning fluid to the said scrubbingdevice, means for revolving the scrubbing device in one direction, adevice concentric with the said sorubbing device. for removing thescrubbing refuse from the casing, and means for revolving the lastaforesaid device in anopposite direction.

volving the last aforesaid device in the op- Y posite direction, andmeans for regulating the aforesaid means for revolving the said devices.

4. A scrubbing machine comprising a casing, a scrubbing device withinthe casing,

means for revolving the scrubbing device in one direction, a deviceconcentric with the said scrubbing device for removing the scrubbingrefuse therefrom, means for re volving the last aforesaid device in theopposite direction, means for regulating the aforesaid means forrevolving the said devices, and means for supplying a cleaning fluid tothe said scrubbingdev ce.

5. A scrubbing machine comprising a casing, a scrubber within thecasing, means for supplying a cleaning liquid to the scrubber, means forrevolving the scrubber in one oli-v rection, a device concentric withsaid scrubber for removing the scrubbing'refuse from the casing, meansfor revolving the last aforesaid device in the opposite direction,

and means for drying a'surface after the same has been cleaned.

6. A scrubbin machine comprising a casing, and a bell -shaped base, theedge' of which is adapted to contact with a surface to be cleaned, ashaft, a brush secured thereto, a refuse remover mounted concentricallyWith said brush within the said bell-shaped base, and means for turningthe said shaft and brush in one direction and the said refuse remover inthe opposite direction.

7. A scrubbing machine comprising a casing and a bell-shaped base, theedge of which is adapted to contact with a surface to be.

cleaned, a shaft, a brush secured thereto, a refuse remover mountedconcentrically with said brush within the said bell-shaped base,

means for turning the said shaft and brush in one direction and the saidrefuse remover in the opposite direction, and means for regulating thespeed at which the said shaft and brush and refuse remover are revolved.

8. A scrubbing machine comprising a casing having a bell-shaped base,the edge of which is adapted to contact with a surface to be cleaned, ahollow shaft, a brush secured to the said hollow shaft at the lower endthereof, means for supplying a cleaning liquid through the said hollowshaft to the said brush, va refuse remover mounted concentricaliy withsaid brush within the said base, and means for revolving the said shaftand brush in one direction and the said refuse remover in the oppositedirection.

9. A scrubbing machine comprising a casing having a bell-shapedbase, theedge of which is adapted to contact with a surface to be cleaned, ahollow shaft, a brush secured to the said hollow shaft at the lower endthereof, means for supplying a cleaning liquid through the said hollowshaft to the said brush, an inverted bowl shaped shell within the saidbell-shaped base and mounted concentrically with the said hollow shaft,there being a discharge chamber between the shell and the upper portionof the said bell-shaped base, a series of spirally arranged vanes on theinner surface of the said shell, adapted at one end to contact with thesurface which has been cleaned,

and terminating at the opposite end at adischarge port leading into thesaid dis.- charge chamber, and means for revolving the said shaft andbrush in one direction and the said shell in the opposite direction.

10. A scrubbing machine comprising a casing having a bell-shaped base,the edge of which is adapted to contact with a sur-.

spirally arranged vanes on the inner sur-' face of the sa1d shell,adaptedat'one end to contact with the surface which has been cleaned andterm nating at the opposite end at a discharge port leading into thesaid discharge chamber, means for revolving the said shaft and brush inone-{direction and the said refuse chamber in the opposite direction, areceptacle secured to the said bellsecured to the said hollow shaft atthe lower end thereof, means for supplying aicleaning liquid through thesaid hollow shaft to the sa1d brush, an inverted bowl shaped shellmounted concentrically with the said hollow shaft, there being adischarge chamber between the shell and the upper portion of the saidbell-shaped base, a series of spirally 4/ arranged'vanes on the innersurface of the said shell, adapted at one end co contact with thesurface which has been cleaned and terminating at the opposite end at adischarge port leadinginto the said discharge chamber, means forrevolving the said shaft and brush in one direction and the said shellin the opposite direction, a receptacle secured to the said bell-shapedbase, a pipe connection between the same and the said discharge chamber,a second casing open at its bottom and also connected to the saidbell-shaped base, a heating medium within the said second casing, andpipe connections from the said discharge chamber to the said secondcasing providing for the discharge of air from the said dis- .chargechamber to the interior of the said second casing.

Signed by us this 22nd day of November,

GEO. F. Kos'rnn. HECTOR D. MacINTYRE. Witnesses: a

BERTHA M. ALLEN, MARIE D. Wonnnns.

